Flower vase



FIG. 1 is a front perspective view showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof.

The broken lines in the figures depict portions of the flower vase that form no part of the claimed design. 

CLAIM The ornamental design for a flower vase, as shown and described. 